hang in the scales
悬而未决not decided
The problem that had been hanging in the scales for several weeks was solved at yesterday`s meeting.这个拖了好几个星期的问题终于在昨天的会议上解决了。
turn the scales
扭转局面cause to change situation
The new development turned the scales in favor of that school.新的发展扭转了局面,对那所学校有利。
The evidence given by his friend turned the scales, and the boy was set free.他朋友提供的证据起了决定作用,那孩子获释了。